dom/encoding/TextEncoderStream.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 sts=2 et cindent: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef DOM_ENCODING_TEXTENCODERSTREAM_H_
   8 #define DOM_ENCODING_TEXTENCODERSTREAM_H_
   9
  10 #include "js/TypeDecls.h"
  11 #include "mozilla/Attributes.h"
  12 #include "mozilla/ErrorResult.h"
  13 #include "mozilla/dom/BindingDeclarations.h"
  14 #include "nsCycleCollectionParticipant.h"
  15 #include "nsWrapperCache.h"
  16
  17 class nsIGlobalObject;
  18
  19 namespace mozilla {
  20
  21 class Decoder;
  22
  23 namespace dom {
  24
  25 class ReadableStream;
  26 class WritableStream;
  27 class TransformStream;
  28
  29 }  // namespace dom
  30
  31 }  // namespace mozilla
  32
  33 namespace mozilla::dom {
  34
  35 class TextEncoderStream final : public nsISupports, public nsWrapperCache {
  36  public:
  37   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  38   NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(TextEncoderStream)
  39
  40  public:
  41   TextEncoderStream(nsISupports* aGlobal, TransformStream& aStream);
  42
  43   nsISupports* GetParentObject() const { return mGlobal; }
  44
  45   JSObject* WrapObject(JSContext* aCx,
  46                        JS::Handle<JSObject*> aGivenProto) override;
  47
  48   mozilla::Decoder* Decoder() { return mDecoder.get(); }
  49
  50   // TODO: Mark as MOZ_CAN_RUN_SCRIPT when IDL constructors can be (bug 1749042)
  51   MOZ_CAN_RUN_SCRIPT_BOUNDARY static already_AddRefed<TextEncoderStream>
  52   Constructor(const GlobalObject& aGlobal, ErrorResult& aRv);
  53
  54   ReadableStream* Readable() const;
  55
  56   WritableStream* Writable() const;
  57
  58   void GetEncoding(nsCString& aRetVal) const;
  59
  60  private:
  61   ~TextEncoderStream();
  62
  63   nsCOMPtr<nsISupports> mGlobal;
  64   RefPtr<TransformStream> mStream;
  65   mozilla::UniquePtr<mozilla::Decoder> mDecoder;
  66 };
  67
  68 }  // namespace mozilla::dom
  69
  70 #endif  // DOM_ENCODING_TEXTENCODERSTREAM_H_